Window



Apr. 1o, 1923'.

` 1,451,077" E. H. LUNKEN WINDOW Filed Nov. 15,11918 a 8 ,9

i no l n zz 55 r' @i o I E o e :fz VT a 53 n t 52 5i" #a l'Je' @m93 ,es v 'wvl gg Ey 4 /vvE/vToR Moz Patented Apr. 10, 1923.

Unirse stares IASLW earsN'i-, Lorsica;

EDMUND n. LUNKniv, or CINQINNATL omo.

, WINDOW.

Application filed November 15, i918. serial ivo. 262,647'. H

v vided in the upper portion ofthe sash frame for the reception of the sash to give a free and unobstructed window opening. In pocket windows of the kind under consideration, it has been customary to make up the window complete at the factory` and form it into a package for shipment with the sashes, frames and the glass all` assembled, leavingnothing for the contractor to do but to wall them in and to surround the frame with the inside trim, which is usually of special wood tol go'with the remainder of the interior woodwork.

Involved in this inside trim are the side stops and topv bead for the sashes, and it is customary in 'the-finish of an ordinary frame to set the side stops and top bead flush with each other onthe inner edges.

Inthe pocket window, however, if the top bead is applied in the usual way, it will project over the pocket opening and interfere with the free movement of the sashes when raised into the pocket.- In fitting the top bead, therefore, it has to be set with its inner edge out of line with the side stops and as a result, unless great care is taken, the top bead is apt to project sligh'tly over the pocket opening, or be` applied at a slight angle and thus mar and -rubthe face of the sash as .it is raised ,into the pocket.

A principalJ object of my invention, in the present instance, is'to dispense altogether with the usuall top bead and to provide a construction'which shallntake the place of and prevent lthe attachment of the top bead, and at the sainev time which shall prevent warping and stiften the walls of the .weight box and inrotherways` render the construction more effective. y

Another object'of ,the invention is to provide a construction of parting strip. which shall serve the purpose not only of the ordinary parting strip, but shalll also act as a weather strip, and the construction is such that the free ends ofthe strip can be spread or separated to take up any looseness or undue play between the sashes. I 1

Still another object of my invention relates tothe means provided for'forming a weathertight joint for the outside of the frame at the lower edge` of the pocket in connection with the screens, in which interlocking metal strips are employed intermediate the frame and screens to engage and interlock when the screensy are in place, to

serve no't only as weatherstripping but also to hold the upper screen properly in position, and in which provision is also made for the easy removal of the top screen.

To improve the construction in connection with the installation of the inside trim and 'i 'the interlocking strip for the screen on the outside, I make use of metal angle strips in the manner to be hereinafter particularly pointed out and claimed, while for the parting strip I provide a wooden ller or core i encased in a copper strip, 'the construction being secured in pla-ceby clips, all in the manner and for the purpose hereinafterdescribed and claimed.

In the drawing, l Figure l is a vertical longitudinal section of my improved window construction. y

-Figure 2 is a front elevation ofthepocket window construction, with the lupper corner partly in section- F igure-3 is a perspective view of the angle strip employed for the top of the window opening.

Figure 4 is a cross section of a portion of the window, taken on the line a, w, of Figure 1.

lFigure 5 is a perspective view of a portion of the parting'strip, showing valsofthe clip for securing the same.

The vpocket windowfis of the usual' con- `r l' struction, provided with the upper and lower sashes' l, 2, withthe ineetinggg-rails3,'r 4L, the

sashes being mounted yin theside stiles 24 with the sill -piece 7, and the head` piece 8. Space is also provided adjacentthe side stiles forfthe usual lower and upper window screens 41, 42 The sash Stiles run to lthe top of the pocket above the window openillustrated, formed of corrugated sheet metal 9 to which the plastering I10 is secured. The outer wall of the pocket is enclosedby sheeting 11 to which when the pocket window is installed the weatherboarding 12 is secured.

With the framework finish 13 for the outside, on the inside `the finish framework 14 is provided and the sill piece 15. The sashes are shown with 'the usual sash 4cords 16, 17, which run over the sash .pulleys 18, 19, at the head of the pulley stiles. rIhe window screens 41, 42, which run up into the pocket, have the channel bar guide 22 of a size to take both screen frames, and the outer face of 'the top rail of the lower .screen frame 41 is provided with an additional strip 21 to engage over the bottom rail of the upper screen, so that both screens may be 'drawn -down together. rIhis strip also engages the upper bar of the upper screen frame, so that both frames may be pushed up together.

YInasmuch as the sashes run up for ltheir full length into the pocket when properly balanced, the user in raising the sash may lift it so rapidly as to strike with a considerable blow against the head piece. In order to prevent this forthe inner sash and to furnish a. brake and guide for the sash within the pocket, I secure between the pulley stile 24 and the pocket casing, a strip of sheet meta-l 25 running vertically upinto the pocket with its free edge 26 curved over to forma bearing for the sides. of the sash and serve as a brakeand guide therefor. In attaching lthe side stop 27 for the inner sash, `the inner edge ofthe stop is secured on a line with this guide strip.

As heretofore referred to, for the purpose of preventing the attachment of the usual top bead, I provide a metal angle strip 28,-which is secured along the lower edgeY of the cross board 29 of the pocket construction. Vwith the lower edge ofV the angle strip flush with the inner edge of the cross board. The strip being of metal acts as a, finish for the upper end of the sash opening and by reason of its being a metal strip prevents the attachment of a top bead. Atthe same time this angle strip extending as itdoes across the entire width of the pocket construction, strengthens very materially lthe pocketL and prevents warping, and binds the walls ofv the weight boxes together. v

For the outside of the frame I also provide an angle strip' 52, which similarly strengthens the construction and prevents warping on the outside.

Heretofore in order to provide a weathertight joint between the top rail of the upper screen and the pocket casing, I have made use of felt material, which is not entirely satisfactory, and in orderto hold the top screen inplace and prevent its dropping down, I have been obliged to use spring pins, or other means for locking the screen in position. Y

As a much simpler and more effective method of obtaining these results, I now utilize the strip 52 to secure acrossrthe top of the outside opening a strip 43, between which and the lower edge of the. sheeting I secure a. strip of sheet metal 44 with an upturned flange.

Secured on the top rail of the screen is a corresponding sheet metal strip 47 with a downturned flange. When the window screen is in'its normal position in the frame, the two flanges ofv the metal strips interlock and furnish a much more satisfactory weathert-ight closure than the felt material heretofore used.

rIhe strip 47 is secured in place on the screen by the filler strip 46, which in my former construction has'been employed to stiffen and strengthen the upper screen rail and to form the bearing for va weatherstrip when the window is elo-sed and which has extended thewidth of the screen into the screen guides. In the present construction, this filler strip is cut ofi at the ends and does not extend into the. channel guides, and as the metal strip is also cut away at the ends so as not to interferel with the screen guides, the upper screen, while normally held by the interlocking ianges, can readily be detached when desired by merely raising the screen to separate the flanges, then pushing over the screen toward the saslh and permitting the flanges to pass each ot er.

The window upper rail 2 for a wiping strip against the screen frame is shown equipped with a wood strip 53, which carries a felt piecev 54. This, felt vpiece is arranged t0 touch the screen frame piece. 46 when the upper sash is in normal closed position.

To serve as a parting strip between the sashes, I provide the filler 30, preferably. of wood, and encase this strip onl three. sides in a sheet metal casing 31. The freeI edges.

32 of this casing extend outwardly from the pulley stile and bearing `against the sides of the sashes serve as a very effective weatherstrip. To'take up any looseness of play between the sashes, the free edges of the casing can bel readily spread apart slightly, so as to maintain a bearing on the sashes. v

In order to secure the parting strip in place in the vertical groovein thepulley stile, I provide the clips 33 which are folded around the back of the parting strip and have the projecting iianges 34, 34, which are screwed or otherwise secured to the pulley stile on each sideof the parting strip. To hold the wood filler in its sheet metal casing and to hold the clips at the proper point, I prefer to rivet the clips as indicated at 35 in Figure 5.

I-Iaving thus described my invention, what I claim as new and desire to secure by Letters Patent, is

l. In a pocket window construction, a window frame with sashes therefor, and a wall pocket adjacent the window opening for the reception of the sashes, and a sheet metal strip forming a continuation of one of the side stops, clamped between the edges or" the stile and the inside pocket wall, eX- tending into the pocket and with its outer edge curved over to form a brake and guide for the sides of the lower sash when raised into the pocket.

2. In a pocket window the combination with a. wall pocket portion at one end of the frame of said window, of a channel for a screen running into said pocket, a screen adapted to slide in said channel and having a frame of a thickness less than the width of the channel, and normally interlocking strips at the mouth of the wall pocket and on the frame of the screen, whereby the screen is held in place with its upper end in the mouth oi' the pocket, the relative dimensions of said screen and said channel permitting the second mentioned strip to be moved pastl the first mentioned strip after said strips are disengaged by raising said screen.

3. In a pocket window the combination with a wall pocket portion at one end of the frame of said window, of a channel for a screen running into said pocket, a screen adapted to slide in said channel and having a frame of a thickness less than the Width of the channel, and normally interlocking strips at the mouth of the wall pocket and on the frame of the screen, whereby the screen is held in place with its upper end in the mouth of the pocket, the relative dimensions of said screen and said channel permitting the second mentioned strip to be moved past the first mentioned strip after said strips are disengaged by raising said screen, a sliding window sash in said frame, said sash having a weather strip projecting into the path of the screen, whereby said weather strip may contact with the screen frame when the strips are in interlocked position in the pocket mouth,and the sash ar'- ranged with the stripped portion in the pocket mouth.

EDMUND H. LUNKEN. 

